Low-light video frame enhancement
US8199222B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2009 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Apr 27, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of combining image data from multiple frames to enhance one or more parameters of video image quality includes acquiring a first image at a first exposure duration, as well as acquiring a second image at a second exposure duration shorter than the first exposure duration and at a time just before, just after or overlapping in time with acquiring the first image, such that the first and second images include approximately a same first scene. In this way, the second image is relatively sharp and under-exposed, while the first image is relatively well-exposed and less sharp than the second image. Brightness and/or color information are extracted from the first image and applied to the second image to generate an enhanced version of the second image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.